Machine for laying reenforcing for concrete pavement



mu 1. X E E M 3 EN EN Q v 0 90 S \L E 1 P m 1 d S mayo-J W 6 a a m v w M)m 1 E A. Momma. MACHINE FOR LAYING REENFORCING FOR CONCRETE PAVEMENT.

APPLICATION FILED MIN/13,1921.

. P. A. KOEHRING.

MACHINE FOR LAYING REENFORCING FOB CONCRETE PAVEMENT.

Patented Aug. 1 1922.

3SHEETS-SHEET 2.

APPLICATION FILED MAY 13, I921.

P. A. KOEHMNG.

G REENFORGING FOR GONCRETE PAVEMENT.

- MACHiNE FOR LAYIN Fmmted Aug. 1 1922..

3 SHEETS-611E] 3.

APPLICATION FILED MAYi3, 1921.

,wuIli.

PHILIP A. KOEHRING, OE" BL'EILWl-KUKEE,

incense,

MENTS, TO KOEHRIDTG CUIlfilPiltNY, 01 OF WISCONSIN.

VII$GONSIIEL ASSIG'NQE, BY MESNE ASSIGN- MILWVTAUKEE, 'WKSQONSIN, ACOJEL'EDRATEON MACHINE FOR LAYKNG' REENFGRCING FUR CQNCEE'EE EPAVEMENQ.

Application filed tra is,

To all whom it concern Be it known that I, PHILIP A. lionnninc,

a citizen of the United States, residing at Milwaukee, in the county ofMilwaukee and State of Wisconsin, have invented certa n new and usefulImprovements in Machines for Laying Beenforcing for Concrete Pavement,of which the following is a speci-'.

lication.

In view of the contemplated use of metal reenforcing in the building ofconcrete pavements and roads, to a greater extent than has heretoforebeen incident to such construction, it is the object ofthis invention toprovide a machine capable of facilitating the operation of supplying thereentorcing material to the portion of the road upon which it will beused.

The machine which I have designed for the above purpose is of lowconstruction so it will not interfere with distribution of concrete overthe same, and is intended to handle the metal reenforcing largely as itis made today, namely in bales of a certain width, provisions being'madefor supporting the bale of the reenforcin'g material conveniently at oneside. of the subgrade for theroad bed, upon a carrier which is adaptedto travel over the subgrade, preferablyupon the road forms or railswhich are now commonly used at opposite sides of the road bed where theconcrete is being laid' The method of supporting the reenforcingmaterial and dispensing the same to feed it transversely of the roadsubgrade upon a layer of the concrete which'is first laid, is

' advantageous in that it enables the material such a way that the usualto be handled by attendants located at one side of the road subgrade,and of greater importance the reenforcing is supplied in distributingvices for the concrete may operate above the machine doing the work.

Furthermore the supporting means for the reentorcing and the operatingmeans by which it is fed into place are so arranged not to interfere inany way with the dis tribution otlthe concrete aggregates on top of thereenforcing, by the ordinary types ct distributingmachines commonly inuse day and lrndwn as pavers,

Still another object of my invention has specification of LettersPatent.

Patented Aug it, twi 1921. Serial in. 469,297. I

been to design my.machine not only for handling the metal reenforcingbut with equipment for striking off the concrete aggregates whichcomprise the first layer or section of concrete uponwhich the re'eniorcing is laid, preliminary to distributing thereo'ver the top sectionor layer of aggregates, the reenforcing being imbedded of course,between the two layers.

Additionally, my invention comprises ready means for cutting the reentorcing in sections of the desired length corresponding to the width ofthe road and I also provide special devices for temporarily supportingthe reenforcing above the road sub rade, and the first layer of concretedistributed, to be thereafter dropped into position for the distributionthereover of the top layer of concrete.

Of course the primary result obtained by the employment of my machine isthe elimination of the use of hand labor in laying the reenforcing inplace, and the machine is preferably propelled by connection with apayer or miner which may pull it along, as said machine progresses overthe, subgrade in the road lhying operation;

Referring to the accompanying drawings a typicalcon'struction of myinvention is illustrated and will'be understood in connection with thefollowing description, and the annexed drawings, in which:

Figure l is the plan view of the machine.

Figure 2 is a'rear elevation.

Figure 3 is a detail view showing the method oi supporting the cutterdevice which travels transversely of the carrier, and longitudinally oithe road subgrade.

Figure lis a transverse sectional view through" the front portion of themachine and illustrating the manner in which the section of reentorcingto be dropped is pre liminarily suppdrted above the concrete alreadylaid, dotted lines illustrating the vertical positions ot' thesupporting plates and manner in which the reenitorcing is deposited byoperating said plates. I

Figure 5 is a transverse view of the machine illustrating the mountingof the operating levers by which the reentorcing' supportine pl; to dropa sec non of the reenforcingonto the "Bil its

a are actuated simu'ltaneously clearly one of the guides for guidingthe.

reenforcing onto the supporting plates Figur 7 is an enlarged detailsectional View showing more clearly the mounting of the carriage wheelsand the support of the strike-off board.

In carrying out the invention hereof, and referring to the drawings, alow wheeled support or carrier A is' utilized, the same Comprisingfront, rear and side frame bars,

the side frame bars being equipped with wheels 1 at opposite ends, whichwheels are adapted to travel upon the road. rails or forms B'atoppositesides of the road subgrade. The concrete is laid upon the sub gradebetween said road forms or rails B, in the well known manner. Ifdesired, the front and rear frame bars or the carrier A may be suppliedwith provi'sionsfor their adjustment to enable the carrier to operateupon road rails B separated a greater or less distance from one another,dependent upon the width of the particular road to be laid. At one sidethereof, the carrier A.

is providedwith a pair of inclined supporting arms C, at the upper outerends of which are provided the bearing brackets 2 which receive andsupport a shaft 3 on. which are mounted centering cones 4- for a roll ofreenforcing fabric of any suitable kind useful for, the purposes ofconcrete road reenfoncing. The reenforcing of the roll, which isdesignated 5 is adapted to be fed from the top of the roll downwardlybetween three feeding and straightening rolls indicated at 6 and 7, theroll 6, being uppermost, and adapted for adjustment, preferably. Fromthe rolls 6 and 7 the reenforcing-fabric or material is fed over a pairof channels 8 onto supporting plates 9, the latter .temporarilydesigned. to support a section of the reenforcing above the road andfacilitate its: movement into such position Q'as it is fed fromthe'straightening and feeding rollers 6 and 7. When a sufiicientquantity of the reenforcing, which is designated 10 has been fed uponthe plates 9 to constitute a section equal to the width of the road,said section must be cut off from'the main quantity of reenforcingsupplied from the roll 5. For this purpose I utilize a cutter 11 seenbest' in F lgure 3 as being carried by thelower' end of a pivoted lever12. The lever'12 is pivoted to a trolley or wheeled support 13, mountedbetween the channels 8 before mentioned, the wheels of the trolleyoperating in said channels as a convenient method of supporting thecutting devi e. Since the channels 8 are arranged transversely of thecarrier A, and ofthereinforcing 10 fed from'the roll 5, it is evidentthat the lever 12 may be actuatedpivotallyto cause the cutter 11 to cutthe reenforcing, as anincident to the shifting of the lever crosswise ofthe machine and longitudinally of said channels 8.

After the desired section of reenforcing has been caused to move overthe subgrade upon which has been laid a section or first layer ofconcrete, and cut off from the main rollor supply of the reenforcing,said sec tion as shown in full lines to a certain extent in Figure 4,will be supported upon the plates 9, a few inches above the concretealready laid. Thereafter it is contemplated to drop the cut section ofreenforcing upon the concrete for which purpose I have mounted theplates 9 in a movable manner, each plate being pivotally connected withthe adj aoent front or rear frame bars, as the case may be, by means ofpivots let which are disposed longitudinally of the plates intermediateof the under sides thereof.

As a suitable operating means the-devices illustrated in Figure 5 areemployed for shifting the plates 9 from the horizontal positions inwhich they .support the reenforcing 10 to vertical positions in whichthey permit the depositing or dropping of the reenforcing section uponthe laid concrete. The devices just referred to comprise levers 15rigidly connected with brackets 16 on the uppersides of the plates 9.Each lever is connected by a link 17 with an intermediate toggle lever18 pivoted to the middle portion of the side frame bar remote fromthatadjacent to which the roll 5 of reenforc'ing is located. The movement ofeither lever 15 by an attendant who may be standing atthe front orrearportion .of the machine will cause the simultaneous movement of theplates 9, to and from the vertical positions illustrated in Figure fl,the normal positions of said plates being, of course, horizontal.

- I utilize spaced guides seen best in Figures 1 and 6, and designated19 toass ist in feeding the fabric properly from the roll 5 to thesprocket wheel upon the shaftjwhich supports one of the rolls 7. Ifdesired, the two rolls 7 will be connected together by a suitablesprocket chain 24:. The operating means just described may be duplicatedfor both ends of the rolls 6 and 7, though a single operating meansshould suffice ordinarily. y

I have already noted that I contemplate utilizing my reenforce layingmachine as a strike-off machine for the preliminary layer paver lmachine or pav 'ployed today.

or? concrete, upon whic l ing is to be deposited, the front one off the:tran' rier it. is co ripped with template 26 a d the la i pose justretort-ed to. supported adjustably concrete at ditl'crent quir'ed withView to ot' the layer l or e lt is contemplated not the machine abovedescribed shall he Cllilwl) I 'Bl d W the subgrade but which i h tratedsince the same is a conventional chine commonly use and Well known todaFor the above purpose utilize any s1 able dra'tt means conventionallyillustrated at 27 as a draft barhaving the roller :28 engaged with apulling cahle dralit bar 2 ner to the rear end of the paver, o l S111 beof the t: 1e utilizing a chute for distriouting the cone or aboom andbucket tor the same pu "poi c, the latter being the customarily useddistrihutii e o- It is notable that my carrier It is con structed of avery low fabric t my reentorcinglaying machine, in an evident manner. Iv

.tn the general operation of my machine,

the same is connected with the travelling mixer or payer, in rear of thelatter and more or less adjacent to the concrete distributing means ofsaid paver. The paver tr-av els forward on the subgrade and my machinetravels over the road bed upon the road rails at the some time. As mymachine moves forward thestrike-olt board 26 strikes ott the-concretefrom the first layer or section deposited, and during the travel of thema chine the attendants operate the same to teed a section oireenitorcing over the laid concrete out oh? the section 'deposit saidsection of recntorcinlg upon the concrete, and contlnue this operationat each proper advance of the machine as necessary. tileanwhile thedistributing bucket, of

the paver is free to operate over the subgrade and distributc'theconcrete upon the latter, and upon the reenter-sing when deposited. Atnostage of the opera tions is it neressary to manually handle thereentorcingg; except perhaps to facilitate the entrance of the samebetween the straightening and feeding rolls 6 and 7.

not illus- 4 may be attached in any suitable ma" ed Words and supportedlow upon the roadrails so ving thus described my invention What claim asn and desire to secure by Lettors l entis:

l. in a machine itoinmechanlcally placing sections ct reenter-clog uponconcrete in concrete road constructiom the combination or a 'ca-rrievadapted to operate over the subgradc means for feeding the reentorcingtrom the machineover andupon laid concrete, and a strilre ol'l carriedby said machine to strike oft the preliminary layer of concrete uponwhich the reentorcing is to he deposited.

. in a iachine lor mechanically placing 4 reeiorcing upon concrete roadsthe comgrade in advance ot the machine and upon which the section ofreen'torcing to be deposited. i

h a machine for mechanically placing reenitorcing, upon concrete roadsin their construction, the combination of a carrier adapted. to travelover the subgrade oi the road, means tor supporting a quantity oireeniorcing upon the machine atone side ot the road suhgrade, and meansfor feeding a section of the reenforcing from said quantity over andupon the subgradc.

5. machine substantially as claimed in claim 4t combined with atravellingcutter adapted to operate across. the section of reenttorcingto sever the same irom'the main quantity from which said sectionis'supplied.

c. machine substantially as claimed in claim. a equipped with supportingmeans for holding the quantity of reentorcing in rolled form, devicesfor straightening the reenforci fed over and upon the subgradespreliminary layer of concrete and a cutter for severing a section oithe-reentorcing and the reentorcing and ply or re'eniorcing, means forfeeding said said reentorcing over the carrier and transversely .ot theroad bed or subgrade, devices for temporarily supporting the reenforcingabove the subgrade' and above a preliminary r ion of a carrier adaptedto operate over 'too layer or concrete deposited thereon, and

means for operating said devices to drop the reenforcing from itsposition of temporary support down upon the concrete on the sub grade;

8. A machine substantially as claimed in claim 7 combined with a cutteradapted to sever a section of the reenforcing from the source of mainsupply, and'a travelling support for said cutter operating onthecarrier.

9. Means substantially as claimed in claim 7 wherein the means totemporarily support the reenforcing above the subgrade com prises platesmovably mounted upon the front and rear portions of said carrier, and

lever mechanisms for simultaneously actuating said plates to cause thesame to release the reenforcing and permit deposit of the lattersubgracle concrete.

10. In a machine for mechanically placing reenforcing upon concrete in'concrete road construction the combination of a carrier comprlslng arelatively. low fabricated frame, means on said carrier for supporting asupply for reenforcing at one side of the road subgra de, means wherebythe'carrier mayitself travel over the road subgrade, and means forfeeding the reenforcing over the carrier and upon the subgrade concrete.

12. A machine for laymg concrete reenforcing. comprising a carrier oflow construction adapted to travel over the road subgrade, andreenforcing dispensing means on said carrier operating to supplyreenforcwhich the ing transversely of the subgrade for deposit onconcrete on the said subgrade.

13. A ma'chine'as set forth in claim 12, combined with a support forasupply of reenforcing disposed at one side of the carrier and mountedthereon.

In testimony whereof I afiix my signature.

PHILIP A.. KOEHRING;

